What determines if a cell becomes a muscle cell or a brain cell? a.
DNA
b.
RNA
C.
Protein
d.
Random luck

Which of the following statements is true? a. there are more chromosomes in an organism than there are genes. b. there are more genes in an organism that there are chemical bases. c. dna is made of sugar, phosphate, and carbon. d. genes are found in specific locations on a chromosome.

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -

Matched chromosomes carrying information about the same characteristics in the organism are called